Carbureter.



Patented Apr. 22, 1919.

2 SHEETS-SHEE l.

CARBURETER.

O. L. SCOTT.

APPHcATloN FILED FEB.15.1917.

IN VEN TOR @i ala/ew l.; Se@ di,

ATTORNEYS rlllww -n.wkltnF dfmmwmwf O. L. SCUTT. CARBURETER. APPLICATION F1159 158.15.1917.

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A'r'rolmiays @LIVER L. SCOTT, 01E SAN FRANCXSCO, CAL'JIFDRNM.

CARB'URETER.

Lautaro. f

Specification of Letters lateut. Patented Api. 22, 1919..

Application tiled. February 15, 1917. Serial No. 1618334..

To all whom t may concern Be itknown that ll, OLIVER L. SCOTT, a citizen of the United States, residing at the city and county of San Francisco and State of California, have 'invented `new and. useful lmprovements in Carbureters, of which the following is a specification. l

This invention relates to that class of carbureting apparatus in which gas or air is conducted through serpentine passages in contact with. a volatile hydrocarbon liquid, the said liquid being caused to rise by capil. lary action through wicks of fabric or other -ibrous material, so as to provide a comparatively large surface exposed to vaporization.

The present invention comprises several improvements, tofwit: a. novel mountingof superposed pans inclosed by a casing; a

serpentine arrangement of wicks suspended in a fuel well formed in each pan; a plurality of suspended wicks each inclosed in such a manner that the fuel is always drawn from the bottom of each well; and an improved n construction and other features hereina er to be described.

The invention also comprises details of construction which will be more fully explained by reference t-o the accompanying dra-wings, in which- Figure 1 is a side elevation of reter partly in section.

Fig. 2 is a plan section on line 2-2 of the carburig.

Fig. 3 is a cross section on line 3--3 of Fig. l. f

Fig. 4 is a perspective view, partly broken away, showing one of the pans.

Referring to the drawings detail, A indicates a rectangular shaped casing constructed of sheet iron or like material, Vin-l teriorly of which is mounted a plurality of superposed pans 2, 3, 4, 5 and 6. Each pan is constructed substantially as shown in Fig.

4 and comprises a bottom 7, a pair of side sections 8, a front end section 9, and a rear end section 10; the sides being secured together by inturning the upper edges, as

shown at 17, andv fitting same in channels.

formed in a cover member 11 preferably constructed of wood, or the sides may be secured together merely by tacking the upper edges, as at 12, to the cove-r. One end of the cover is flush with the front end 9 and as this end is merely'carried half way up, as shown at 13, an intake opening 14 is shown at 16.

formed through which'air will pass, as

hereinafter described. The other end of the A cover is cut 0H to form a top outlet 15, be-- rllhe wicks, referring to lFig. 2, are disposed parallel with relation to each other and crosswise of the pan to form a serpentine passage, such as indicated by the arrows. The upper edge of each wick is tacked to the cover section 11 and the length is sufficient to extend approximately to the bottom 7 of the pan. ,Surrounding each Wick, and suit-ably secured thereto, is an inclosing member 18, which consists of a piece of tin. rllhis is clamped or otherwise secured to each wick and is sufficiently long to extend a little above the highest oil level obtained in each pan. The lower end of each wick projects below the inclosing member 18 and all oil absorbed by the wicks is drawn from the bottom of the pans. This is an important feature when it is considered that practically all gasolene sold contains more or less distillate or low gravity oils which will not readily evaporate. Each pan would, therefore, gradually accumulate a considerable amount of low gravity oil, if the wicks were not inclosed as here shown, as the lighter oils would be quickly drawn up through the wicks while the low gravity oil wouldcollect as a residue on the bottom.

By inclosing each wick, as shown, it can readily be seenA that all oil is drawn from the bottom. rllhe low gravity oil which would' otherwise accumulate is, therefore, drawn up with the lighter oil and is given more chance to evaporate than would otherwise be the case.

In actual operation, referring to Fig. 1, it will be .seen that a plurality of superimposed pans are employed. The first or lowermost pan is placed in the bottom of the casing and is here secured in any suitable manner; the second pan 3 is then placed on top of/the lowermost pan, with its rear end wall 10 'in engagement with the intake side of the casing; the third pan 4 is placed v then passingthrough andbetween the wicks in said pan and out through the top outlet.

15 from where it enters the front end inlet 14 of the next pan. The air is thus caused to pass back and forth through each pan in successive order, and as each pancontains a great wick area it can readily be seen that a comparatively high percentage of volatile hydrocarbon gas is absorbed before it finally escapes through the outlet pipe 20.-

The casing 1s provided with a filling funnel 21, through which the gasolene is poured. The gasolene thus 'admitted will first fill the upper pan and will then overfiow'the end section 9, which determines the maximum level of each pan, down into the pan directly under. This, when filled to the heightof its end section 9, again overflows and each pan will in turn overflow until the lowermost pan has been filled; the level in the lowermost pan being determined by a gage glass, such as shown at 22. Each pan is provided with a drain consisting of a nipple 23, a I-fitting 24, a drain valve 25 and a closing plug. 26. 'Ihe plugs 26 and the height of the fittings 24 are such that removal of any plug 26 permits the oil level in any pan to be determined. Also the t, valve 25 permits draining of any individual pan, if it is found that too much low gravity v.oil has accumulated.

Air may be forced through the casing by a compressor fan, or 'any other suitable means, and the discharge pipe 20 may be directly connected with the service piping of a dwelling or may be directly connected with a gasometer for storage and future use; all such piping carrying gas, however, being preferably placed on an incline to permit drainage back to the casing of any gas which may have re-condensed.

The carbureter as a whole is 'simple and substantial in construction and has in actual ractice been found to be `very eihcient, as 1t not only lpresents a large saturated wick area through and between which the air must pass before it can escape, but it `has also proven much more efficient than any carbureter heretofore` used as compara-` tively little residue is obtained.

. For the purpose ofpreventing the wicks from waving or blowing entirely out of the gasolene when a comparatively strong current of air is being passed through the carbureter four tie rods 30.have been provided in connection with each set of wicks. rIhe two outside rods abut againstv the ends of the pans while all four rods pass through the lower ends of the wicks and act as -weights or spacers which hold the lower ends in spaced relation and prevent any in teurere,

dividual wick or set of same from blowing out, as previously mentioned.

For the purpose of preventing the sides of the casing from bulging out when air is being forced through the casing a pair of strips 29 has been secured to 'each pan cover section. The outer endsof these strips are turned down, as at 31, and secured to the inner sides of the casing are vertically spaced pairs of opposing strips 32 which have their upper edge portions inwardly offset to provide tracks over which4 Athe downturned ends 31 engage to thereby -secure the sides with relation to the pans and prevent bulging. `rIhe tracks or guides, to-

gether with the strips 29, furthermore, provide means forsupporting each individual pan within the casing independent of the other. These strips 32 are suitably secured to the sides of the' casing, as by spot weldl ing.

The materials and nish of the several parts of the carbureter are` such as the -exv perience and judgment of the manufacturer pairs of opposing strips secured Ato the in.

ner side walls thereof and having their upper edge portions inwardly offset, a lplurality of closed oil pans 'each having an air linlet in one end and an outlet in the oppor site end communicatingwith the inlet of a next adjacent pan whereby a current of air f will followla zig-zag course through` the pans for contact with the oil therein, the@y inlet of the first pan communicating with' the inlet opening of the casing and the out- A letiof the last pan communicating with the outlet opening of the casing, and strips transversely arranged onA the pans and proliov vided with downturned ends engaging over the inwardly offset upper edges of the. first strips to prevent bulging of the'side walls of the casing. f

In testimony whereof I have hereunto set my hand in the presence of a subscribing witness.

Witness: f JOHN H. IIERRING.

OLIVER L. scorer.` y 

